The Effects of Adding Input Redundancies in Linear Quadratic Regulator Problems

The Effects of Adding Input Redundancies in Linear Quadratic Regulator Problems
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在线性二次调节器问题中添加输入冗余的效果

DOI:
10.1007/s10957-011-9845-z
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发表时间:
2011-04
影响因子:
1.9
通讯作者:
Huang, Lin
Huang, Lin
中科院分区:
数学3区
文献类型:
--
作者:
Peng, Zhongxing;Yang, Ying;Huang, Lin

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本文研究了在线性二次型调节器(LQR)问题中重复添加输入冗余的影响。随着输入冗余数的增加,三个等价的条件,以保证严格减少的最小成本,这是由一对上下界的约束。新增加的输入冗余对降低最小成本的贡献将在增加更多冗余之后减小。此外,最小成本将收敛到零的输入冗余的数量走向无穷大,这是证明了通过转换的LQR问题成为一个廉价的控制问题。
This paper investigates the effects of adding input redundancies repeatedly into linear quadratic regulator (LQR) problems. As the number of input redundancies increases, three equivalent conditions are stated to guarantee a strict decrease of the minimum cost, which is constrained by a pair of lower and upper bounds. The contribution of a new added input redundancy to reduce the minimum cost will diminish after more redundancies are added. Moreover, the minimum cost will converge to zero as the number of input redundancies goes toward infinity, which is proven by transferring the LQR problem into a cheap control problem.
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发表时间: 1985-12
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